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Top Questions

2 votes
0 answers
34 views

How long would it take for a global resurfacing event to turn a habitable world into a Venusian world?

7 votes
6 answers
622 views

What is the safest way to camp in a zombie apocalypse?

6 votes
9 answers
2k views

Would it be possible for a living being the size of a planet to survive?

4 votes
7 answers
2k views

How fast would unrest spread in the Middle Ages?

4 votes
1 answer
87 views

If ancient Venus really were once habitable, what was its atmospheric composition and average surface temperature? [closed]

-2 votes
1 answer
42 views

How many Consciousnesses could exist in a Matrioshka brain built around an O class star

15 votes
5 answers
2k views

Would an industrial level society be able to visually identify orbital debris from a destroyed mega structure?

63 votes
18 answers
14k views

Modern warfare theory in a medieval setting

2 votes
1 answer
66 views

if people are bred like dogs, what can be achieved?

3 votes
3 answers
106 views

Air drafts generated by dragonflight

-2 votes
0 answers
19 views

Can a planet without a satellite be suitable and how will this affect its climate and appearance?

5 votes
3 answers
755 views

Can a star that initially started with less energy output than the sun (when it was young) evolve to be as luminous as the sun in the same time period

6 votes
6 answers
1k views

Voting system openly based on money, would it work and/or be accepted?

5 votes
0 answers
25 views

Weather on a Hot Saturn

5 votes
1 answer
82 views

Could an azhdarchid pterosaur take off and fly while being ridden by a human?

4 votes
1 answer
100 views

Spearguns without rubber?

21 votes
7 answers
3k views

Could a moon or planet exist with "puddles" of breathable air in deep craters?

4 votes
5 answers
246 views

Could Humans Evolve to Drink Saltwater?

9 votes
6 answers
732 views

What are some of the longest effective one handed weapons?

64 votes
17 answers
17k views

Explaining where energy comes from to power magic

2 votes
2 answers
411 views

How would living underground (bioluminescence) affect a humanoid race?

5 votes
2 answers
263 views

If an otherwise too massive planet rotates fast enough, would the equatorial region become habitable?

0 votes
0 answers
108 views

Are these ocean currents for my planet plausible?

5 votes
8 answers
1k views

Practical Combat Pipe

2 votes
1 answer
68 views

Could an electro kinetic superhero use lightning to fly

2 votes
3 answers
324 views

What are the potential advantages/disadvantages of a hyper maneuverable aircraft that operates similar to Armored Core's mechs?

9 votes
1 answer
653 views

How do you tell if you're in a nebula?

1 vote
1 answer
55 views

What would the implications of a anti-gravity metal be? [closed]

14 votes
7 answers
3k views

Would you be able to look directly at the Sun if it were a red giant?

13 votes
13 answers
4k views

Could an Alien decipher human languages using only comms traffic?

5 votes
3 answers
3k views

Telekinesis via electromagnetism and its energy requirements

-1 votes
0 answers
39 views

The construction of the chronovisor [closed]

3 votes
3 answers
745 views

Would a person adapted for super-speed be super-strong too as a side effect?

8 votes
6 answers
11k views

Would killing 444 billion humans leave any physical impact on Earth that's measurable?

2 votes
6 answers
510 views

How could I justify putting my provincial capital in a hostile climate?

13 votes
10 answers
3k views

How much time is needed to judge an Earth-like planet to be safe?

17 votes
6 answers
7k views

WW1 soldier in WW2 : how would he get caught?

6 votes
1 answer
666 views

Can a Tidally-Breathing Animal Possess a Syrinx?

8 votes
7 answers
4k views

How would I evolve horns on humans?

-1 votes
0 answers
68 views

Mercury-based synthetic blood

10 votes
4 answers
3k views

Could alien species with blood based on different elements eat the same food?

111 votes
32 answers
30k views

If 120 experts in 12 different fields were sent back 10,000 years, could they recreate the 21st century in 100 years?

1 vote
4 answers
443 views

"Infantry" main weapons for the setting described below?

1 vote
3 answers
266 views

"Infantry" main weapons for the setting described below? (NOT a duplicate for reasons explained in the post)

4 votes
3 answers
116 views

How much Methane could reasonably exist on a world with 6% (60,000 ppm) Oxygen in the atmosphere?

6 votes
3 answers
155 views

Storm-Powered Industrial Revolution Complications/Limitations


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